Research on application of GIS analysis model in automatic delineation of management scope line for the river sections without embankments of rivers,lakes and reservoirs
The delineation of management scope lines is the fundamental work for the management of rivers,lakes and reservoirs under river chief system.The management scope line of the river section without embankment has been manually drawn by survey and design personnel according to topographic map and flood water surface line re-sults.Manual delineation has the shortages of low efficiency and inconsistent quality,so a GIS analysis model is de-veloped and applied in the delineation of management scope lines for the unleveed sections of rivers,lakes and res-ervoirs.The test results demonstrate that this analysis model permits simple operation and is able to replace manual drawing to automatic generation of the management scope line.The error number of the management scope demarca-tion of 10km river reach is reduced from an average of 5.5 to 0,with a increase of efficiency by nearly a hundred times,solving the problem of human factor error and improving work efficiency,and providing a simple automatic delineation method for the management scope line demarcation of unleveed sections of rivers,lakes and reservoirs.The application of GIS in the work of river chief system is expanded.
river chief systemriver section without embankmentmanagement scope lineGISmodeldelineation method
万方数据
维普
